Swift
VIPER Architecture in Swift: How to Decouple iOS Modules
Decouple, separate, disengage, or dissociate (something) from something else.
SwiftUI
SwiftUI @StateObject vs @ObservedObject: The ObservedOrStateObject Pattern
How we built ObservedOrStateObject to let SwiftUI views own or observe view models without duplicating code.
SwiftUI
SwiftUI Alerts: Fixing Bugs When Multiple Alerts Collide
SwiftUI silently ignored save error alerts once a second alert existed, and this post captures what we learned in the Advanced SwiftUI: Lessons From Mistakes series.
SwiftUI
SwiftUI @Published Crash: “Pointer Being Freed Was Not Allocated” Explained
During test teardown we hit a repeatable 'pointer being freed was not allocated' crash while deallocating a @MainActor ObservableObject, and this post explains why we treated it as a Swift runtime edge case instead of rewriting our architecture.
SwiftUI
SwiftUI @MainActor Initializers: Safe Default Parameters and Actor Isolation
After enabling stricter Swift concurrency checks, we started seeing main-actor isolation errors from @MainActor initializers that used default parameter values. This post explains why default parameter expressions are nonisolated and how to fix the pattern by moving defaults into the initializer body.
SwiftUI
DependencyContainer Malloc Crash in Tests – Post-Mortem
Under XCTest teardown we hit a repeatable 'pointer being freed was not allocated' malloc crash when deallocating async/Combine-heavy DependencyContainer and view models. This post explains what was happening and why we fixed it by deliberately leaking those objects in DEBUG tests only.
Architecture
Pre-generation Strategy: How We Cut Report Load Times from 3 Minutes to 20ms
How we transformed 3-minute financial report load times into 20ms responses using pre-generation, database caching, and scheduled jobs.
